﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.ServiceModel;
namespace ch02.service.contract
{
[ServiceContract(Name = "CalculatorService", Namespace = "http://www.wcf-programming.com")]
public interface ICalculator
{
    [OperationContract]
    double Add(double x, double y);
}
}
